feat: improve cli docstrings

src/cli/app/__main__.py

@@ -2,6 +2,7 @@
 
 
 def main() -> None:
+    """Invoke the CLI application."""
     app()
 
 

src/cli/app/builder/urls.py

@@ -6,24 +6,30 @@
 
 
 class UrlBuilder:
+    """Builds backend and frontend URLs for the CLI."""
+
     def __init__(self, backend_url: str, frontend_url: str) -> None:
+        """Create a URL builder from base backend and frontend URLs."""
         self._backend_url = self.__ensure_scheme(backend_url)
         self._frontend_url = self.__ensure_scheme(frontend_url)
 
     @staticmethod
     def __ensure_scheme(url: str) -> str:
+        """Ensure the URL includes a scheme."""
         if not urlparse(url).scheme:
             return "https://" + url.lstrip("/")
         return url
 
     @staticmethod
     def __ensure_trailing_slash(url: str) -> str:
+        """Ensure the URL ends with a trailing slash."""
         if not url.endswith("/"):
             return url + "/"
         return url
 
     @classmethod
     def resolve(cls, initial_url: str | None = None) -> "UrlBuilder":
+        """Resolve URLs from input, settings, or interactive prompts."""
         url_candidate = initial_url or settings.INSTANCE_URL
 
         if url_candidate:
@@ -46,22 +52,28 @@ def resolve(cls, initial_url: str | None = None) -> "UrlBuilder":
 
     @property
     def backend_url(self) -> str:
+        """Return the normalized backend base URL."""
         return self.__ensure_trailing_slash(self._backend_url)
 
     @property
     def frontend_url(self) -> str:
+        """Return the normalized frontend base URL."""
         return self.__ensure_trailing_slash(self._frontend_url)
 
     def upload_url(self) -> str:
+        """Return the upload endpoint URL."""
         return urljoin(self.backend_url, "upload")
 
     def config_url(self) -> str:
+        """Return the config endpoint URL."""
         return urljoin(self.backend_url, "config")
 
     def download_url(self) -> str:
+        """Return the download endpoint base URL."""
         return urljoin(self.backend_url, "download/")
 
     def share_url(self, slug: str, key_secret: str) -> str:
+        """Build a shareable frontend URL including the key fragment."""
         # urljoin handles the path joining
         base_share = urljoin(self.frontend_url, f"download/{slug}")
         return f"{base_share}#{key_secret}"

src/cli/app/client.py

@@ -18,26 +18,33 @@ class _ProgressReader:
     """Wraps a file object and updates a tqdm bar on every read."""
 
     def __init__(self, fp: BinaryIO, pbar: tqdm) -> None:
+        """Create a progress-aware wrapper around a binary file object."""
         self._fp = fp
         self._pbar = pbar
 
     def read(self, size: int = -1) -> bytes:
+        """Read bytes and advance the progress bar."""
         data = self._fp.read(size)
         if data:
             self._pbar.update(len(data))
         return data
 
     def seek(self, offset: int, whence: int = 0) -> int:
+        """Seek within the wrapped file object."""
         return self._fp.seek(offset, whence)
 
     def tell(self) -> int:
+        """Return the current stream position."""
         return self._fp.tell()
 
     def __getattr__(self, name: str) -> Any:
+        """Delegate missing attributes to the wrapped file object."""
         return getattr(self._fp, name)
 
 
 class Client:
+    """Async API client for uploads and downloads."""
+
     def __init__(self, urls: UrlBuilder):
         """
         Initialize with a UrlBuilder instance.
@@ -57,6 +64,7 @@ def __init__(self, urls: UrlBuilder):
         )
 
     async def __aenter__(self) -> Self:
+        """Enter the async context manager."""
         return self
 
     async def __aexit__(
@@ -65,9 +73,11 @@ async def __aexit__(
         exc_value: BaseException | None,
         traceback: TracebackType | None,
     ) -> None:
+        """Exit the async context manager and close the session."""
         await self.close()
 
     async def close(self) -> None:
+        """Close the underlying HTTP session."""
         await self._session.aclose()
 
     @classmethod

src/cli/app/commands/upload.py

@@ -13,8 +13,9 @@
 from app.helpers.file import cleanup
 from app.helpers.print import print_compact_qr
 
-app = typer.AsyncTyper(help="Upload encrypted files via Chithi.")
-console = Console()
+app: typer.AsyncTyper = typer.AsyncTyper(help="Upload encrypted files via Chithi.")
+console: Console = Console()
+error_console: Console = Console(stderr=True)
 
 
 @app.async_command()
@@ -32,7 +33,7 @@ async def upload(
         bool, typer.Option("--no-qr", help="Do not print the QR code.")
     ] = False,
 ) -> None:
-    """Compress, encrypt, and upload a file or folder."""
+    """Compress, encrypt, and upload a file or folder, then print the share link."""
     try:
         # Resolve URLs based on input/prompts
         urls = UrlBuilder.resolve(instance_url)
@@ -93,18 +94,18 @@ async def upload(
         # UI Output Logic
         if minimal:
             # Clean output for scripts or pipes
-            typer.echo(download_url)
+            console.print(download_url, highlight=False, markup=False)
         else:
             # Pretty output
-            typer.echo("\n✓ Upload complete!")
+            console.print("\n[green]✓ Upload complete![/green]")
             if not no_qr:
                 print_compact_qr(download_url, console)
-            typer.echo(f"\n  Download URL : {download_url}")
+            console.print(f"\n  Download URL : {download_url}")
             if password:
-                typer.echo(
-                    "  ⚠ Password-protected. Recipients will need the password to decrypt."
+                console.print(
+                    "  [yellow]⚠ Password-protected. Recipients will need the password to decrypt.[/yellow]"
                 )
 
     except Exception as exc:
-        typer.echo(f"✗ Upload failed: {exc}", err=True)
+        error_console.print(f"[red]✗ Upload failed: {exc}[/red]")
         raise typer.Exit(code=1)

src/cli/app/helpers/archive.py

@@ -7,6 +7,7 @@
 
 
 def _get_source_size(source: Path) -> int:
+    """Return the size of a file or total size of a directory tree."""
     if source.is_file():
         return source.stat().st_size
     return sum(f.stat().st_size for f in source.rglob("*") if f.is_file())

src/cli/app/helpers/crypto.py

@@ -24,10 +24,12 @@ def generate_ikm() -> bytes:
 
 
 def ikm_to_base64url(ikm: bytes) -> str:
+    """Encode IKM as URL-safe base64 without padding."""
     return base64.urlsafe_b64encode(ikm).rstrip(b"=").decode("ascii")
 
 
 def base64url_to_ikm(s: str) -> bytes:
+    """Decode URL-safe base64 into IKM bytes."""
     s += "=" * (-len(s) % 4)
     return base64.urlsafe_b64decode(s)
 
@@ -137,6 +139,7 @@ def _derive_secrets(ikm: bytes, password: str | None) -> Tuple[bytes, bytes]:
 
 
 def _argon2(password: bytes, salt: bytes, iterations: int, memory: int) -> bytes:
+    """Run Argon2id with provided parameters."""
     kdf = Argon2id(
         salt=salt,
         length=32,
@@ -148,6 +151,7 @@ def _argon2(password: bytes, salt: bytes, iterations: int, memory: int) -> bytes
 
 
 def _get_chunk_iv(base_iv: bytes, index: int) -> bytes:
+    """Derive a per-chunk IV by XORing the index into the base IV."""
     iv = bytearray(base_iv)
     existing = struct.unpack_from("!I", iv, 8)[0]
     struct.pack_into("!I", iv, 8, existing ^ index)

src/cli/app/settings.py

@@ -2,6 +2,8 @@
 
 
 class Settings(BaseSettings):
+    """Environment-driven settings for the CLI."""
+
     INSTANCE_URL: str | None = None
     EXPIRE_AFTER_N_DOWNLOAD: int | None = None
     EXPIRE_AFTER: int | None = None

src/cli/build.py

@@ -9,7 +9,10 @@
 
 
 class NuitkaBuilder:
+    """Builds a standalone CLI binary using Nuitka."""
+
     def __init__(self, target: str = "./app", output_name: str | None = None) -> None:
+        """Create a builder for a target module path."""
         self.target = target
         self.output_name = output_name
         self.base_args: list[str] = [
@@ -27,6 +30,7 @@ def __init__(self, target: str = "./app", output_name: str | None = None) -> Non
         ]
 
     def build_windows(self, debug: bool = False) -> None:
+        """Build a Windows binary with optional debug flags."""
         args = self.base_args.copy()
         args.extend(
             [
@@ -42,11 +46,13 @@ def build_windows(self, debug: bool = False) -> None:
         self._run(args)
 
     def build_linux(self) -> None:
+        """Build a Linux binary using clang."""
         args = self.base_args.copy()
         args.append("--clang")
         self._run(args)
 
     def _run(self, args: list[str]) -> None:
+        """Run the Nuitka build with the assembled arguments."""
         if self.output_name:
             args.append(f"--output-filename={self.output_name}")
 

src/frontend/src/lib/components/QRCode.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
 	import { cn } from '$lib/utils';
-	import QRCode from 'qrcode';
+	import { renderSVG } from 'uqr';
 
 	interface Props {
 		value: string;
@@ -18,36 +18,41 @@
 		class: klass
 	}: Props = $props();
 
-	let canvas = $state<null | HTMLCanvasElement>(null);
+	let svgMarkup = $state('');
 
 	$effect(() => {
-		if (canvas) {
-			QRCode.toCanvas(
-				canvas,
-				value,
-				{
-					width: size,
-					margin: 1,
-					color: {
-						dark: color,
-						light: backgroundColor
-					}
-				},
-				(error) => {
-					if (error) console.error(error);
-				}
-			);
+		const svg = renderSVG(value, {
+			border: 1,
+			pixelSize: 1,
+			blackColor: color,
+			whiteColor: backgroundColor
+		});
+
+		if (klass) {
+			const safeClass = klass.replace(/"/g, '&quot;');
+			svgMarkup = svg.replace('<svg', `<svg class="${safeClass}"`);
+			return;
 		}
+
+		svgMarkup = svg;
 	});
 </script>
 
 <div
 	class={cn(
-		`grid h-fit w-fit`,
-		// I dont like the fact that canvas is a image and people can right click canvas to get the image
-		// So i am making the canvas unclickable using the same technique facebook/instagram uses
+		`qr-code grid h-fit w-fit`,
+		// Prevent right-click save on the rendered SVG by overlaying a transparent layer.
 		`after:col-start-1 after:row-start-1 after:h-full after:w-full after:content-['']`
 	)}
+	style={`width: ${size}px; height: ${size}px;`}
 >
-	<canvas bind:this={canvas} class={cn(klass, 'col-start-1 row-start-1')}></canvas>
+	{@html svgMarkup}
 </div>
+
+<style>
+	.qr-code :global(svg) {
+		width: 100%;
+		height: 100%;
+		display: block;
+	}
+</style>